Simultaneous Nadir Overpasses (SNOs) between GOES-14 and NPP
TLE Epoch: 2021 9 29.  Predictions up to the next  14.0 days:

     Date     Time(GOES-14)   GOES-14 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 09/29/2021   08:39:49   (   0.32,-104.23) (   1.20,-108.10)  442.28                80
 09/30/2021   08:18:25   (   0.33,-104.21) (   0.19,-103.57)   72.65                80
 10/02/2021   20:21:37   (  -0.31,-104.22) (  -0.34,-104.35)   14.58                80
 10/05/2021   08:27:21   (   0.30,-104.23) (   0.50,-105.09)   98.22                80
 10/06/2021   08:05:57   (   0.31,-104.21) (  -0.51,-100.56)  416.99                80
 10/07/2021   20:27:54   (  -0.29,-104.20) (  -0.63,-105.87)  189.58                80
 10/08/2021   20:11:49   (  -0.30,-104.20) (   0.32,-101.32)  328.00                80
 10/10/2021   08:33:38   (   0.28,-104.24) (   0.79,-106.60)  269.42                80
 10/11/2021   08:12:13   (   0.29,-104.22) (  -0.22,-102.07)  245.40                80
 10/12/2021   20:34:10   (  -0.26,-104.16) (  -0.98,-107.37)  366.17                80